Go to local diesel shop & get a rebuilt throttle lever cover & seals & gasket & remove 2 nuts that hold cover to pump & the shut off mechanism will fall out of place & then the spring from the throttle linkage to the pump will have to be taken off remembering the hole the spring goes on. This...
Most air conditioner will not blow as cold of air because there is less air going over the condenser, causing higher head pressure, and therefore higher suction/low side pressure. When the Suction pressure goes up cooling efficiency goes down so this makes sense at idle.Backflow the heater core...